@import url('https://fonts.googleapis.com/css2?family=Roboto+Slab:wght@700&display=swap');
body{
    background-color: #000;
    font-family: Roboto Slab;
}
.header{
    color: #fff;
    width: 95%;
    margin: 10px auto;
    padding: 5px;
    text-align: center;
    background: #1e1e1e;
}
.container{
    padding: 15px;
    width: 50%;
    margin: 30px auto;
    background-color: #1e1e1e;
    color: #fff;
}
input{
    margin: 5px;
    width: 17px;
    height: 17px;
    display: none;
    /* opacity: 0; */
}
label{
    cursor: pointer;
    display: inline-flex;
}
input+label::before{
    content: '';
    /* position: absolute; */
    width: 30px;
    height: 30px;
    /* top: 0; left: 0; right: 0; bottom: 0; */
    background: url('../img/check_mark_off20.png') center 0 no-repeat;
}
input:checked+label::before{
    background: url('../img/check_mark_on20.png') center 0 no-repeat;
}
button{
    margin: 7px 5px 15px;
    padding: 4px;
    font-family: Roboto Slab;
    font-weight: bold;
    background-color:#77B255;
    border: 1px solid #367114;
    transition: 0.2s;
    cursor: pointer;
}
button:active{
    background:#367114;
    color:#fff;
}




/* media */
@media (max-width:880px) {
    .container{
        width: 90%;
    }
}
@media (max-width:500px) {
    .header{
        width: 100%;
        margin: 20px 0;
        padding: 0;
    }
    .container{
        width: 100%;
        margin: 0;
    }
    body{
        margin: 0;
    }
}